<P>Is cleanliness next to godliness? What does such a concept really mean? Why does it recur as a universal theme across all societies? And what are the implications for the unclean? </P><P></P><P>In<I> Purity and Danger</I> Mary Douglas identifies the concern for purity as a key theme at the heart of every society. In lively and lucid prose she explains its relevance for every reader by revealing its wide-ranging impact on our attitudes to society, values, cosmology and knowledge. This book has been hugely influential in many areas of debate ¿ from religion to social theory. With a specially commissioned preface by the author which assesses the continuing significance of the work, this Routledge Classics edition will ensure that <I>Purity and Danger</I> continues to challenge, question and inspire for many years to come.</P>